Merge pull request #2110 from libgit2/ed/crlf_input

Handle `core.autocrlf=input` when checking out

5 files changed, 248 insertions, 26 deletions

diff --git a/src/crlf.c b/src/crlf.c
index e1bd5572b..db69cab5c 100644
--- a/src/crlf.c
+++ b/src/crlf.c
@@ -269,7 +269,9 @@ static int crlf_check(
 	if (ca.crlf_action == GIT_CRLF_BINARY)
 		return GIT_PASSTHROUGH;
 
-	if (ca.crlf_action == GIT_CRLF_GUESS) {
+	if (ca.crlf_action == GIT_CRLF_GUESS ||
+		(ca.crlf_action == GIT_CRLF_AUTO &&
+		git_filter_source_mode(src) == GIT_FILTER_SMUDGE)) {
 		error = git_repository__cvar(
 			&ca.auto_crlf, git_filter_source_repo(src), GIT_CVAR_AUTO_CRLF);
 		if (error < 0)
@@ -277,6 +279,10 @@ static int crlf_check(
 
 		if (ca.auto_crlf == GIT_AUTO_CRLF_FALSE)
 			return GIT_PASSTHROUGH;
+
+		if (ca.auto_crlf == GIT_AUTO_CRLF_INPUT &&
+			git_filter_source_mode(src) == GIT_FILTER_SMUDGE)
+			return GIT_PASSTHROUGH;
 	}
 
 	*payload = git__malloc(sizeof(ca));
diff --git a/tests/checkout/crlf.c b/tests/checkout/crlf.c
index cba79432f..0d78ee039 100644
--- a/tests/checkout/crlf.c
+++ b/tests/checkout/crlf.c
@@ -18,19 +18,6 @@ void test_checkout_crlf__cleanup(void)
 	cl_git_sandbox_cleanup();
 }
 
-void test_checkout_crlf__detect_crlf_autocrlf_false(void)
-{
-	git_checkout_opts opts = GIT_CHECKOUT_OPTS_INIT;
-	opts.checkout_strategy = GIT_CHECKOUT_SAFE_CREATE;
-
-	cl_repo_set_bool(g_repo, "core.autocrlf", false);
-
-	git_checkout_head(g_repo, &opts);
-
-	check_file_contents("./crlf/all-lf", ALL_LF_TEXT_RAW);
-	check_file_contents("./crlf/all-crlf", ALL_CRLF_TEXT_RAW);
-}
-
 void test_checkout_crlf__autocrlf_false_index_size_is_unfiltered_size(void)
 {
 	git_index *index;
@@ -100,18 +87,6 @@ void test_checkout_crlf__more_crlf_autocrlf_true(void)
 		check_file_contents("./crlf/more-crlf", MORE_CRLF_TEXT_AS_CRLF);
 }
 
-void test_checkout_crlf__all_crlf_autocrlf_true(void)
-{
-	git_checkout_opts opts = GIT_CHECKOUT_OPTS_INIT;
-	opts.checkout_strategy = GIT_CHECKOUT_SAFE_CREATE;
-
-	cl_repo_set_bool(g_repo, "core.autocrlf", true);
-
-	git_checkout_head(g_repo, &opts);
-
-	check_file_contents("./crlf/all-crlf", ALL_CRLF_TEXT_RAW);
-}
-
 void test_checkout_crlf__autocrlf_true_index_size_is_filtered_size(void)
 {
 	git_index *index;
@@ -229,3 +204,97 @@ void test_checkout_crlf__with_ident(void)
 
 	git_index_free(index);
 }
+
+void test_checkout_crlf__autocrlf_false_no_attrs(void)
+{
+	git_checkout_opts opts = GIT_CHECKOUT_OPTS_INIT;
+	opts.checkout_strategy = GIT_CHECKOUT_SAFE_CREATE;
+
+	cl_repo_set_bool(g_repo, "core.autocrlf", false);
+
+	git_checkout_head(g_repo, &opts);
+
+	check_file_contents("./crlf/all-lf", ALL_LF_TEXT_RAW);
+	check_file_contents("./crlf/all-crlf", ALL_CRLF_TEXT_RAW);
+}
+
+void test_checkout_crlf__autocrlf_true_no_attrs(void)
+{
+	git_checkout_opts opts = GIT_CHECKOUT_OPTS_INIT;
+	opts.checkout_strategy = GIT_CHECKOUT_SAFE_CREATE;
+
+	cl_repo_set_bool(g_repo, "core.autocrlf", true);
+
+	git_checkout_head(g_repo, &opts);
+
+	if (GIT_EOL_NATIVE == GIT_EOL_CRLF) {
+		check_file_contents("./crlf/all-lf", ALL_LF_TEXT_AS_CRLF);
+		check_file_contents("./crlf/all-crlf", ALL_CRLF_TEXT_AS_CRLF);
+	} else {
+		check_file_contents("./crlf/all-lf", ALL_LF_TEXT_RAW);
+		check_file_contents("./crlf/all-crlf", ALL_CRLF_TEXT_RAW);
+	}
+}
+
+void test_checkout_crlf__autocrlf_input_no_attrs(void)
+{
+	git_checkout_opts opts = GIT_CHECKOUT_OPTS_INIT;
+	opts.checkout_strategy = GIT_CHECKOUT_SAFE_CREATE;
+
+	cl_repo_set_string(g_repo, "core.autocrlf", "input");
+
+	git_checkout_head(g_repo, &opts);
+
+	check_file_contents("./crlf/all-lf", ALL_LF_TEXT_RAW);
+	check_file_contents("./crlf/all-crlf", ALL_CRLF_TEXT_RAW);
+}
+
+void test_checkout_crlf__autocrlf_false_text_auto_attr(void)
+{
+	git_checkout_opts opts = GIT_CHECKOUT_OPTS_INIT;
+	opts.checkout_strategy = GIT_CHECKOUT_SAFE_CREATE;
+
+	cl_git_mkfile("./crlf/.gitattributes", "* text=auto\n");
+
+	cl_repo_set_bool(g_repo, "core.autocrlf", false);
+
+	git_checkout_head(g_repo, &opts);
+
+	check_file_contents("./crlf/all-lf", ALL_LF_TEXT_RAW);
+	check_file_contents("./crlf/all-crlf", ALL_CRLF_TEXT_RAW);
+}
+
+void test_checkout_crlf__autocrlf_true_text_auto_attr(void)
+{
+	git_checkout_opts opts = GIT_CHECKOUT_OPTS_INIT;
+	opts.checkout_strategy = GIT_CHECKOUT_SAFE_CREATE;
+
+	cl_git_mkfile("./crlf/.gitattributes", "* text=auto\n");
+
+	cl_repo_set_bool(g_repo, "core.autocrlf", true);
+
+	git_checkout_head(g_repo, &opts);
+
+	if (GIT_EOL_NATIVE == GIT_EOL_CRLF) {
+		check_file_contents("./crlf/all-lf", ALL_LF_TEXT_AS_CRLF);
+		check_file_contents("./crlf/all-crlf", ALL_CRLF_TEXT_AS_CRLF);
+	} else {
+		check_file_contents("./crlf/all-lf", ALL_LF_TEXT_RAW);
+		check_file_contents("./crlf/all-crlf", ALL_CRLF_TEXT_RAW);
+	}
+}
+
+void test_checkout_crlf__autocrlf_input_text_auto_attr(void)
+{
+	git_checkout_opts opts = GIT_CHECKOUT_OPTS_INIT;
+	opts.checkout_strategy = GIT_CHECKOUT_SAFE_CREATE;
+
+	cl_git_mkfile("./crlf/.gitattributes", "* text=auto\n");
+
+	cl_repo_set_string(g_repo, "core.autocrlf", "input");
+
+	git_checkout_head(g_repo, &opts);
+
+	check_file_contents("./crlf/all-lf", ALL_LF_TEXT_RAW);
+	check_file_contents("./crlf/all-crlf", ALL_CRLF_TEXT_RAW);
+}
diff --git a/tests/clar_libgit2.c b/tests/clar_libgit2.c
index 50762cdb8..9b062ef78 100644
--- a/tests/clar_libgit2.c
+++ b/tests/clar_libgit2.c
@@ -420,6 +420,14 @@ int cl_repo_get_bool(git_repository *repo, const char *cfg)
 	return val;
 }
 
+void cl_repo_set_string(git_repository *repo, const char *cfg, const char *value)
+{
+	git_config *config;
+	cl_git_pass(git_repository_config(&config, repo));
+	cl_git_pass(git_config_set_string(config, cfg, value));
+	git_config_free(config);
+}
+
 /* this is essentially the code from git__unescape modified slightly */
 static size_t strip_cr_from_buf(char *start, size_t len)
 {
@@ -468,6 +476,7 @@ void clar__assert_equal_file(
 			p_snprintf(
 				buf, sizeof(buf), "file content mismatch at byte %d",
 				(int)(total_bytes + pos));
+			p_close(fd);
 			clar__fail(file, line, buf, path, 1);
 		}
 
diff --git a/tests/clar_libgit2.h b/tests/clar_libgit2.h
index b9ef5627e..915111244 100644
--- a/tests/clar_libgit2.h
+++ b/tests/clar_libgit2.h
@@ -116,4 +116,6 @@ void cl_repo_commit_from_index(
 void cl_repo_set_bool(git_repository *repo, const char *cfg, int value);
 int cl_repo_get_bool(git_repository *repo, const char *cfg);
 
+void cl_repo_set_string(git_repository *repo, const char *cfg, const char *value);
+
 #endif
diff --git a/tests/index/crlf.c b/tests/index/crlf.c
new file mode 100644
index 000000000..cf69c6226
--- /dev/null
+++ b/tests/index/crlf.c
@@ -0,0 +1,136 @@
+#include "clar_libgit2.h"
+#include "../filter/crlf.h"
+
+#include "git2/checkout.h"
+#include "repository.h"
+#include "posix.h"
+
+#define FILE_CONTENTS_LF "one\ntwo\nthree\nfour\n"
+#define FILE_CONTENTS_CRLF "one\r\ntwo\r\nthree\r\nfour\r\n"
+
+#define FILE_OID_LF "f384549cbeb481e437091320de6d1f2e15e11b4a"
+#define FILE_OID_CRLF "7fbf4d847b191141d80f30c8ab03d2ad4cd543a9"
+
+static git_repository *g_repo;
+static git_index *g_index;
+
+void test_index_crlf__initialize(void)
+{
+	g_repo = cl_git_sandbox_init("crlf");
+	cl_git_pass(git_repository_index(&g_index, g_repo));
+}
+
+void test_index_crlf__cleanup(void)
+{
+	git_index_free(g_index);
+	cl_git_sandbox_cleanup();
+}
+
+void test_index_crlf__autocrlf_false_no_attrs(void)
+{
+	const git_index_entry *entry;
+	git_oid oid;
+
+	cl_repo_set_bool(g_repo, "core.autocrlf", false);
+
+	cl_git_mkfile("./crlf/newfile.txt",
+		(GIT_EOL_NATIVE == GIT_EOL_CRLF) ? FILE_CONTENTS_CRLF : FILE_CONTENTS_LF);
+
+	cl_git_pass(git_index_add_bypath(g_index, "newfile.txt"));
+	entry = git_index_get_bypath(g_index, "newfile.txt", 0);
+
+	cl_git_pass(git_oid_fromstr(&oid,
+		(GIT_EOL_NATIVE == GIT_EOL_CRLF) ? FILE_OID_CRLF : FILE_OID_LF));
+	cl_assert(git_oid_cmp(&oid, &entry->id) == 0);
+}
+
+void test_index_crlf__autocrlf_true_no_attrs(void)
+{
+	const git_index_entry *entry;
+	git_oid oid;
+
+	cl_repo_set_bool(g_repo, "core.autocrlf", true);
+
+	cl_git_mkfile("./crlf/newfile.txt",
+		(GIT_EOL_NATIVE == GIT_EOL_CRLF) ? FILE_CONTENTS_CRLF : FILE_CONTENTS_LF);
+
+	cl_git_pass(git_index_add_bypath(g_index, "newfile.txt"));
+	entry = git_index_get_bypath(g_index, "newfile.txt", 0);
+
+	cl_git_pass(git_oid_fromstr(&oid, FILE_OID_LF));
+	cl_assert(git_oid_cmp(&oid, &entry->id) == 0);
+}
+
+void test_index_crlf__autocrlf_input_no_attrs(void)
+{
+	const git_index_entry *entry;
+	git_oid oid;
+
+	cl_repo_set_string(g_repo, "core.autocrlf", "input");
+
+	cl_git_mkfile("./crlf/newfile.txt",
+		(GIT_EOL_NATIVE == GIT_EOL_CRLF) ? FILE_CONTENTS_CRLF : FILE_CONTENTS_LF);
+
+	cl_git_pass(git_index_add_bypath(g_index, "newfile.txt"));
+	entry = git_index_get_bypath(g_index, "newfile.txt", 0);
+
+	cl_git_pass(git_oid_fromstr(&oid, FILE_OID_LF));
+	cl_assert(git_oid_cmp(&oid, &entry->id) == 0);
+}
+
+void test_index_crlf__autocrlf_false_text_auto_attr(void)
+{
+	const git_index_entry *entry;
+	git_oid oid;
+
+	cl_git_mkfile("./crlf/.gitattributes", "* text=auto\n");
+
+	cl_repo_set_bool(g_repo, "core.autocrlf", false);
+
+	cl_git_mkfile("./crlf/newfile.txt",
+		(GIT_EOL_NATIVE == GIT_EOL_CRLF) ? FILE_CONTENTS_CRLF : FILE_CONTENTS_LF);
+
+	cl_git_pass(git_index_add_bypath(g_index, "newfile.txt"));
+	entry = git_index_get_bypath(g_index, "newfile.txt", 0);
+
+	cl_git_pass(git_oid_fromstr(&oid, FILE_OID_LF));
+	cl_assert(git_oid_cmp(&oid, &entry->id) == 0);
+}
+
+void test_index_crlf__autocrlf_true_text_auto_attr(void)
+{
+	const git_index_entry *entry;
+	git_oid oid;
+
+	cl_git_mkfile("./crlf/.gitattributes", "* text=auto\n");
+
+	cl_repo_set_bool(g_repo, "core.autocrlf", false);
+
+	cl_git_mkfile("./crlf/newfile.txt",
+		(GIT_EOL_NATIVE == GIT_EOL_CRLF) ? FILE_CONTENTS_CRLF : FILE_CONTENTS_LF);
+
+	cl_git_pass(git_index_add_bypath(g_index, "newfile.txt"));
+	entry = git_index_get_bypath(g_index, "newfile.txt", 0);
+
+	cl_git_pass(git_oid_fromstr(&oid, FILE_OID_LF));
+	cl_assert(git_oid_cmp(&oid, &entry->id) == 0);
+}
+
+void test_index_crlf__autocrlf_input_text_auto_attr(void)
+{
+	const git_index_entry *entry;
+	git_oid oid;
+
+	cl_git_mkfile("./crlf/.gitattributes", "* text=auto\n");
+
+	cl_repo_set_string(g_repo, "core.autocrlf", "input");
+
+	cl_git_mkfile("./crlf/newfile.txt",
+		(GIT_EOL_NATIVE == GIT_EOL_CRLF) ? FILE_CONTENTS_CRLF : FILE_CONTENTS_LF);
+
+	cl_git_pass(git_index_add_bypath(g_index, "newfile.txt"));
+	entry = git_index_get_bypath(g_index, "newfile.txt", 0);
+
+	cl_git_pass(git_oid_fromstr(&oid, FILE_OID_LF));
+	cl_assert(git_oid_cmp(&oid, &entry->id) == 0);
+}